Question

Rectangle with base length 10cm and diagonal length 15 cm

Answer 1

A ≈ 111.8

Explanation:

Given: find the area of a rectangle with the length or base of 10cm and diagonal length of 15cm.

First, using the formulas:

• A = wl and
• d =
  `√(w^2+l^2)` find the area

Solving A:

A =
`l√(d^2-l^2)`

10 *
`√(15^2-10^2)`

=
`111.8034cm^2`

= 111.8
`cm^2`