Question

Solve this:
1. Find the complements of the following angles.
A 45^o b 8^o c 20^o d 85^o e 13^o f 25^o g 78^o

Answer 1

$$\begin{gathered} \mathrm{We}\mathrm{know}\mathrm{that}\mathrm{sum}\mathrm{of}2\mathrm{complementary}\mathrm{angles}\mathrm{is}\mathrm{always}90°. \\ \left(\mathrm{a}\right). \\ \mathrm{Given}\mathrm{angle}=45° \\ \mathrm{Measure}\mathrm{of}\mathrm{its}\mathrm{complement}=90°-45°=45° \\ \left(\mathrm{b}\right). \\ \mathrm{Given}\mathrm{angle}=8° \\ \mathrm{Measure}\mathrm{of}\mathrm{its}\mathrm{complement}=90°-8°=82° \\ \left(\mathrm{c}\right). \\ \mathrm{Given}\mathrm{angle}=20° \\ \mathrm{Measure}\mathrm{of}\mathrm{its}\mathrm{complement}=90°-20°=70° \\ \left(\mathrm{d}\right). \\ \mathrm{Given}\mathrm{angle}=85° \\ \mathrm{Measure}\mathrm{of}\mathrm{its}\mathrm{complement}=90°-85°=5° \end{gathered}$$

Similarly, you can do the other parts.