70+80+(m+10)= 180°
150+m+10=180
160+m=180
m=20°
The perfect squares on either side of 21 are 16 and 25 of which the roots are:
4 and 5
19.6 is the answer to your question
Answer:
7/22
Step-by-step explanation:
Area = 400/200 × 400/200 ×1/4 × 7/22 = 7/22
Answer:
This is a vertical angle theorem
Step-by-step explanation:
Vertical angles are a pair of opposite angles formed by intersecting lines. In the figure, ∠1 and ∠3 are vertical angles. ... Vertical angles are always congruent . So, in this figure, ∠1≅∠3 and ∠2≅∠4 .