Please select a subject first
Advertisements
Advertisements
Identify, with reason, if the following is a Pythagorean triplet.
(5, 12, 13)
Concept: undefined >> undefined
Identify, with reason, if the following is a Pythagorean triplet.
(24, 70, 74)
Concept: undefined >> undefined
Advertisements
Identify, with reason, if the following is a Pythagorean triplet.
(10, 24, 27)
Concept: undefined >> undefined
Identify, with reason, if the following is a Pythagorean triplet.
(11, 60, 61)
Concept: undefined >> undefined
For finding AB and BC with the help of information given in the figure, complete following activity.
AB = BC .......... 
∴ ∠BAC = 
∴ AB = BC =
× AC
=
× `sqrt8`
=
× `2sqrt2`
= 

Concept: undefined >> undefined
Find the side and perimeter of a square whose diagonal is 10 cm.
Concept: undefined >> undefined
In the given figure, ∠DFE = 90°, FG ⊥ ED, If GD = 8, FG = 12, find (1) EG (2) FD and (3) EF

Concept: undefined >> undefined
Find the length diagonal of a rectangle whose length is 35 cm and breadth is 12 cm.
Concept: undefined >> undefined
In the given figure, M is the midpoint of QR. ∠PRQ = 90°. Prove that, PQ2 = 4PM2 – 3PR2.

Concept: undefined >> undefined
Walls of two buildings on either side of a street are parallel to each other. A ladder 5.8 m long is placed on the street such that its top just reaches the window of a building at the height of 4 m. On turning the ladder over to the other side of the street, its top touches the window of the other building at a height 4.2 m. Find the width of the street.
Concept: undefined >> undefined
In ∆PQR, point S is the midpoint of side QR. If PQ = 11, PR = 17, PS = 13, find QR.
Concept: undefined >> undefined
In ∆ABC, AB = 10, AC = 7, BC = 9, then find the length of the median drawn from point C to side AB.
Concept: undefined >> undefined
In the given figure, point T is in the interior of rectangle PQRS, Prove that, TS2 + TQ2 = TP2 + TR2 (As shown in the figure, draw seg AB || side SR and A-T-B)

Concept: undefined >> undefined
Some question and their alternative answer are given. Select the correct alternative.
If a, b, and c are sides of a triangle and a2 + b2 = c2, name the type of triangle.
Concept: undefined >> undefined
Find the length of the hypotenuse of a right angled triangle if remaining sides are 9 cm and 12 cm.
Concept: undefined >> undefined
Pranali and Prasad started walking to the East and to the North respectively, from the same point and at the same speed. After 2 hours distance between them was \[15\sqrt{2}\]
km. Find their speed per hour.
Concept: undefined >> undefined
In ∆ABC, ∠BAC = 90°, seg BL and seg CM are medians of ∆ABC. Then prove that:
4(BL2 + CM2) = 5 BC2

Concept: undefined >> undefined
Prove that:
`(sin^2θ)/(cosθ) + cosθ = secθ`
Concept: undefined >> undefined
In ∆ABC, seg AD ⊥ seg BC, DB = 3CD.
Prove that: 2AB2 = 2AC2 + BC2

Concept: undefined >> undefined
In an isosceles triangle, length of the congruent sides is 13 cm and its base is 10 cm. Find the distance between the vertex opposite the base and the centroid.
Concept: undefined >> undefined
