Answer:
+2
Step-by-step explanation:
Plus cancels minus
There are 4+ and 2 minus
+4 -2 = +2
The result is +2
∠B = 52°
Since the triangles are similar then
∠C = ∠S = 56°
∠B = 180° - (72 + 56)° = 52°
Answer:
77 in ^2 is the best estimate
Step-by-step explanation:
We can get the total area from the sum of the triangle and the semi circle
semicircle
1/2 the area of the semicircle
A = 1/2 pi r^2
1/2 (3.14) ( 4^2)
25.12
Now find the area of the triangle
The base is 16 -r = 16-4 = 12
The height is 8
A = 1/2 bh
= 1/2 (8) (12)
= 48
The total area is 25.12+48 =73.12
Answer:
z = 38
Step-by-step explanation:
The sum of the angles of a triangle add to 180
z+ 90+52 = 180
Combine like terms
z +142 = 180
Subtract 142 from each side
z+142-142 = 180-142
z =38
