Answer: A and B are Acute angles and C is a right angle
Step-by-step explanation:
Answer:
11
Step-by-step explanation:
If you notice the x values 5, 7, 9, x you'll see thy are going up by adding 2.
do 9 + 2 = 11
Answer: 2.5 then 100.5
Step-by-step explanation:
Answer:
<h2>133.5 cm²</h2>
Step-by-step explanation:
We have
three triangles with the base <em>b = 10cm</em> and the height <em>h₁ = 6cm</em>
one triangle with the base <em>b = 10cm</em> and the height <em>h₂ = 8.7cm</em>.
The formula of an area of a triangle:
<em>b</em><em> - base</em>
<em>h</em><em> - height</em>
Substitute:
I hope this helps you
42=4n-7n-7. (-9)
42=-3n+63
-3n=-21
n=7