MEDIUM
10th CBSE
IMPORTANT
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If the area of an equilateral triangle is 363 cm2, find its perimeter.

Important Questions on Perimeter and Area of Plane Figures

MEDIUM
10th CBSE
IMPORTANT
Secondary School Mathematics for Class 10>Chapter 15 - Perimeter and Area of Plane Figures>Exercise 15A>Q 12
If the area of an equilateral triangle is 813 cm2, find its height.
MEDIUM
10th CBSE
IMPORTANT
Secondary School Mathematics for Class 10>Chapter 15 - Perimeter and Area of Plane Figures>Exercise 15A>Q 13
The base of a right-angled triangle measures 48 cm and its hypotenuse measures 50 cm. Find the area of the triangle.
MEDIUM
10th CBSE
IMPORTANT
Secondary School Mathematics for Class 10>Chapter 15 - Perimeter and Area of Plane Figures>Exercise 15A>Q 14
The hypotenuse of a right-angled triangle is 65 cm and its base is 60 cm. Find the length of perpendicular and the area of the triangle.
MEDIUM
10th CBSE
IMPORTANT
Secondary School Mathematics for Class 10>Chapter 15 - Perimeter and Area of Plane Figures>Exercise 15A>Q 15
Find the area of a right-angled triangle, the radius of whose circumcircle measures 8 cm and the altitude drawn to the hypotenuse measures 6 cm.
MEDIUM
10th CBSE
IMPORTANT
Secondary School Mathematics for Class 10>Chapter 15 - Perimeter and Area of Plane Figures>Exercise 15A>Q 16
Find the length of the hypotenuse of an isosceles right-angled triangle whose area is 200 cm2. Also, find its perimeter. [ Given, 2=1.41 ]
HARD
10th CBSE
IMPORTANT
Secondary School Mathematics for Class 10>Chapter 15 - Perimeter and Area of Plane Figures>Exercise 15A>Q 17
The base of an isosceles triangle measures 80 cm and its area is 360 cm2. Find the perimeter of the triangle.
HARD
10th CBSE
IMPORTANT
Secondary School Mathematics for Class 10>Chapter 15 - Perimeter and Area of Plane Figures>Exercise 15A>Q 18
Each of the equal sides of an isosceles triangle measures 2 cm more than its height, and the base of the triangle measure 12 cm. Find the area of the triangle.
MEDIUM
10th CBSE
IMPORTANT
Secondary School Mathematics for Class 10>Chapter 15 - Perimeter and Area of Plane Figures>Exercise 15A>Q 19
Find the area and perimeter of an isosceles right triangle, each of whose equal sides measure 10 cm. [Take 2=1.41]