WorksheetsClass 9th
Total questions: 10
Worksheet time: 5mins
Name
Class
Date
1.
One side of an equilateral triangle is 4 cm. The area of the triangle is _______
a)
16 √3 cm2
b)
8 √3 cm2
c)
4 √3 cm2
d)
√3 cm2
2.
The perimeter of an equilateral triangle is 60 cm. Find the length of its sides.
a)
30 cm
b)
20 cm
c)
15 cm
d)
10 cm
3.
The length of equal sides of an ISOSCELES RIGHT TRIANGLE is √2 cm. Find the length of its hypotenuse
a)
4 cm
b)
8 cm
c)
2 cm
d)
None of the above
4.
The area of ΔABC in which AB = AC = 4 cm and ∠A = 90° is ________
a)
8 cm2
b)
16 cm2
c)
10 cm2
d)
32 cm
5.
a)
₹ 3255
b)
₹ 32.55
c)
₹ 32550
d)
None of the above
6.
The perimeter of a triangle is 36cm and its sides are in the ration 3 : 4 : 5. Then the sides are____
a)
6 cm, 9 cm, 12 cm
b)
9 cm, 12 cm, 15 cm
c)
12 cm, 15 cm, 18 cm
d)
None of the above
7.
If each side of an equilateral triangle is 6 cm, the semi perimeter will be
a)
8 cm
b)
9 cm
c)
10 cm
d)
11 cm
8.
If length of two equal sides of an ISOSCELES triangle is 5m each and its Semi perimeter is 9 m, the length of third side will be
a)
5 m
b)
6 m
c)
7 m
d)
8 m
9.
Which option is INCORRECT ?
Heron's Formula is used to find the area of triangle when
a)
Three sides are given
b)
Two sides & perimeter is given
c)
Height is given
d)
Two sides & semi perimeter is given
10.
Find the area of the given Triangle
a)
4 sq.m
b)
5 sq.m
c)
6 sq.m
d)
7 sq.m
100 %
