maria55228 maria55228

13-03-2020
Mathematics

contestada

Solve for x
A. 10 degrees
B. 18 degrees
C. 20 degrees
D. 22.5 degrees

Solve for x A 10 degrees B 18 degrees C 20 degrees D 225 degrees class=

Respuesta :

gcantiga44 gcantiga44

13-03-2020

Answer:

10

Step-by-step explanation:

This is a complimentary angle (angles the sums up to 90°)

So,

a + b = 90

4x + 5x = 90

9x = 90

x = 90 ÷ 9

x = 10

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