Question

Calculate the area of the triangle, state the units of your answer. The known sides are 6 cm and 6cm, and the known angle is 90cm. What do I do to get the last mark? Did I forget something???

Answer 1

Explanation:

The area of given triangle is 18 cm².

Since the given triangle has one angle of 90°, it is also called a Right Angled Triangle and since its two given sides are given equal as 6 cm, it is also an Isosceles Triangle.

Due to Right Angled and Isosceles Triangle Property, It’s area can be calculated by: 1/2 x base x height

Where height and base are two given sides of the triangle.

So, area of given triangle= 1/2 x 6 cm x 6 cm

Area= 18 cm²

Hence. The area is found to be 18 cm² with cm² as area unit since sides are given in cms.