Area = 3150 ft²
Unknown Side = 45 ft²
First, you know two of the sides of the shape have a length of 70 ft. So you subtract 140 (which is 70 · 2) from 230 and get 90. 90 is the total length of the two unknown sides. In order to find one side you divided 90 by 2. Here is the work I did:
70 · 2 = 140
230 - 140 = 90
90 ÷ 2 = 45
45 is the length of the unknown side.
Now to find area:
Area = <span>length × width
Area = 45 x 70
Area = 3150 ft</span>²
Note that saying "ft squared" is very important because it lets the reader know that it is a 2D shape.
C
2160/180= 12+2=14
14 sides
Answer:
8
Step-by-step explanation:
the degree is the highest exponent value
Answer:
AE = 22.86
Step-by-step explanation:
In triangle CDE
cos 30° = CD/CE
In triangle BCE
sin 45° = CE/BE
In triangle ABE
sin 60° = BE/AE
AE = 22.8619043
AE = 22.86