Answer:
1. cm
2. 318.198 ft^2.
Step-by-step explanation:
Hmm. Very stuck. We'll just take it slow. :)
For the first one, we'll just square the bottom of the parallelogram, because
it's a square. The answer is above.
The second is a bit more complicated. The formula for the area of a parallelogram is (base) x (height)= A(area), but that will be of no use until we know the height (the dashed line on the left).
So, do let's go about finding the height with a 45-45-90 triangle.
The way these work is that the two short sides are equal to x, and the longer one is . So, in essence, .
15/=10.61
Both of the other two sides (one being the height) are 10.61 ft long.
Multiply that by 30:
30 x 10.61= and you get 318.198 ft^2.
Solution-
The answer is 3 because an equilateral triangle has 3 equal sides and therefore there are 3 equal angles.
Each equal angle contains an arc of equal length.
so the answer is 3 that is option A is correct.
Answer:
b = 10 mm
Step-by-step explanation:
the area (A) of a triangle is calculated as
A = bh ( b is the base and h the height )
given A = 30 and h = 6 , then
b × 6 = 30 , that is
3b = 30 ( divide both sides by 3 )
b = 10
Answer:
m∠ACD = 140°
Step-by-step explanation:
You know that 90° is a right angle.
And you know that 180° is no angle.
If m∠B = 60° and m∠A = 80°, all you do is add 60° and 80°.
<u>60 + 80 = 140</u>
When dealing with negatives, the higher the number is, the lower the value is. therefore, -34 is less that -9.