3 years ago

I NEED HELP WITH GEOMETRY

1 answer:

8 0

7 is tangent, point of tangency
8 is degrees
9 is minor arc
10 is semi circle
11 is major arc
12
A-Radius
B-Minor arc
C-Chord
D-Diameter
E-Tangent
F-Secant
G-point of tangency
H- Repeat of C
I-Semi circle
J-Major arc
k-acute

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Look at the picture.

The polygon is a right-angled trapezoid.

The area is:
$A=\frac{a+b}{2} \times h$

The points (-2,-1) and (6,-1) lie on the same horizontal line, so the distance between them is 6-(-2)=6+2=8. The length of a is 8 units.
The points (-2,5) and (3,5) lie on the same horizontal line, so the distance between them is 3-(-2)=3+2=5. The length of b is 5 units.
The points (-2,5) and (-2,-1) lie on the same vertical line, so the distance between them is 5-(-1)=5+1=6. The length of h is 6 units.

$A=\frac{8+5}{2} \times 6=\frac{13}{2} \times 6=13 \times 3=39$

The area is 39 square units.