- ABC = 15 cm, AC = 12 cm
- BBC = 12 cm, AC = 15 cm
- CBC = 15 cm, AC = 15 cm
- DBC = 7.5 cm, AC = 6 cm
Step-by-Step Solution
Using BC as base: BC BC, so BC = 15 cm. Using AC as base: AC AC, so AC = 12 cm.
Answer: A) BC = 15 cm, AC = 12 cm
In triangle ABC, the area is 90 sq cm.
The height from A to side BC is 12 cm, and the height from B to side AC is 15 cm.
Find the lengths of sides BC and AC.
Class 7Area of TrianglesPerimeter and Area
Master this chapter in 30 minutes a day.
Don't just memorise the answer — build a daily practice habit.
Practice 5 Similar Questions Free →All Area of Triangles practice questions
More Class 7 Area of Triangles practice
A triangle has an area of 90 sq cm and a height of 9 cm. If its height is increased by 4…A triangular plot ABC has base BC = 50 m and height 24 m. A path is made so that the…The area of a triangle is 150 sq cm. If the base is decreased by 1/3 (becomes 2/3 of the…A large triangular region has base 80 m and height 30 m. It is divided into 4 equal…A right triangle has legs 9 cm and 12 cm, and its hypotenuse is 15 cm. Find the area…