Advertisements
Advertisements
प्रश्न
The table given below contains some measures of the right angled triangle. Find the unknown values.
| Base | Height | Area |
| 20 cm | 40 cm | ? |
Advertisements
उत्तर
Area of the right triangle = `1/2 xx ("base" xx "height") "unit"^2`
b = 20 cm
h = 40 cm
Area = `1/2 ("b" xx "h") "cm"^2`
= `1/2 xx 20 xx 40`
= 400 cm2
A = 400 cm2
Tabulating the unknown values
| Base | Height | Area |
| 20 cm | 40 cm | 400 cm2 |
APPEARS IN
संबंधित प्रश्न
If the points A(x, 2), B(−3, −4) and C(7, − 5) are collinear, then the value of x is:
(A) −63
(B) 63
(C) 60
(D) −60
If A(−4, 8), B(−3, −4), C(0, −5) and D(5, 6) are the vertices of a quadrilateral ABCD, find its area.
Find the area of the triangle whose vertices are: (–5, –1), (3, –5), (5, 2)
Find the area of the following triangle:

Find a relation between x and y, if the points A(x, y), B(–5, 7) and C(–4, 5) are collinear.
If the points (2, -3), (k, -1), and (0, 4) are collinear, then find the value of 4k.
Find the area of the triangle whose vertices are (-2, 6), (3, -6), and (1, 5).
If `D((-1)/2, 5/2), E(7, 3)` and `F(7/2, 7/2)` are the midpoints of sides of ∆ABC, find the area of the ∆ABC.
In the following figure, ΔMNO is a right-angled triangle. Its legs are 6 cm and 8 cm long. Length of perpendicular NP on the side MO is ______.

Using determinants, find the area of ΔPQR with vertices P(3, 1), Q(9, 3) and R(5, 7). Also, find the equation of line PQ using determinants.
