Question

1 point
18. Two angles whose sum is 900
are called
a. supplementary angles
O b. complementary angles
O c. corresponding angles
O d. alternate angles​

Answer 1

Step-by-step explanation:

2 angles can not be 900

if it is 90⁰ the ans is complementary angles.

Answer 2

your question must be 90° instead of 900

your answer is complementary angles...option b