The area of an equilateral triangle with perimeter 60 cm is
100 cm2
100 √3 cm2
150 cm2
150 √3 cm 2
D, E and F are midpoints of sides QR, RP and PQ of Δ PQR.If Δ PQR is 96 cm.Then semi perimeter of Δ DEF is _____ cm.
96 cm
48 cm
24 cm
12 cm
The area of quadrilateral ABCD in the adjoining figure is
15.2 cm2
15.8 cm2
15 cm2
16. 2 cm 2
The area of trapezium in the adjoining figure is
296 m2
306 m2
276 cm2
286 m2
Find the area of an isosceles right angled triangle with equal side a is
√3/4 a2
a2/2
2a
None of these
Sides of a triangle are 18 cm, 20 cm and 22 cm. If its area is √ x cm2, then x =
150
28800
30,000
200
The area of a triangle with longest side 15 cm, perimeter 40 cm and difference of other two sides 1 cm is
20 √ 14 cm2
20 √7 cm2
15 √14 cm2
20 cm2
If two sides of a triangle are 8 cm and 11 cm and also the perimeter is 32 cm, then its area is
24 cm2
8 √30 cm2
16 cm2
20 cm 2
The area of a triangular sign board of sides 6 cm, 8 cm and 7 cm is
65 cm2
30.2 cm 2
60.2 cm 2
20.3cm 2
If semi perimeter of an equilateral triangle is 15 cm, then its area is
25
30√3
30
25√3
