Advertisements
Advertisements
प्रश्न
In the given figure, angle BAC = 90°, AC = 400 m, and AB = 300 m. Find the length of BC.
Advertisements
उत्तर
AC = 400 m
AB = 300 m
BC =?
According to Pythagoras Theorem,
BC2 = AB2 + AC2
BC2 = (300)2 + (400)2
BC2 = 90000 + 160000
BC2 = 250000
BC =`sqrt250000` = 500 m
APPEARS IN
संबंधित प्रश्न
ABC is a triangle right angled at C. If AB = 25 cm and AC = 7 cm, find BC.
Identify, with reason, if the following is a Pythagorean triplet.
(11, 60, 61)
Find the length diagonal of a rectangle whose length is 35 cm and breadth is 12 cm.
In a trapezium ABCD, seg AB || seg DC seg BD ⊥ seg AD, seg AC ⊥ seg BC, If AD = 15, BC = 15 and AB = 25. Find A(▢ABCD)
The sides of the triangle are given below. Find out which one is the right-angled triangle?
11, 12, 15
In a square PQRS of side 5 cm, A, B, C and D are points on sides PQ, QR, RS and SP respectively such as PA = PD = RB = RC = 2 cm. Prove that ABCD is a rectangle. Also, find the area and perimeter of the rectangle.
From the given figure, in ∆ABQ, if AQ = 8 cm, then AB =?
In ΔABC, if DE || BC, AD = x, DB = x – 2, AE = x + 2 and EC = x – 1, then value of x is ______.
In figure, PQR is a right triangle right angled at Q and QS ⊥ PR. If PQ = 6 cm and PS = 4 cm, find QS, RS and QR.
In a triangle, sum of squares of two sides is equal to the square of the third side.
