Question

Which is the best estimate of the area of a triangle that has the base of 23.62 cm and height of 8.33 cm?

Answer 1

Best estimate of the area of a triangle = 100 $\text {cm}^2$.

Solution:

Given base of the triangle = 23.62 cm

Height of the triangle = 8.33 cm

Area of the triangle = $\frac{1}{2} \times \text{base}\times \text {height}$

                                $=\frac{1}{2}\times23.62\times 8.33$

                                $=\frac{1}{2}\times196.7546$

                                $=98.3773 \ \text {cm}^2$

Area of the triangle = 98.3773 $\text {cm}^2$

Estimation means rounded off to the closest correct answer.

98.3773 rounded off to 100.

Hence, best estimate of the area of a triangle = 100 $\text {cm}^2$.