Answer:
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Step-by-step explanation:
Answer:
8.5 cm
Step-by-step explanation:
Angles of the triangle:
Right triangle as it has 90° angle
Sides are a, b and 19 cm
- sin 30°= a/19 ⇒ a= 19 sin 30°= 19*0.5= 8.5 cm = shortest side
- sin 60°= b/19 ⇒ b= 19 sin 60°= 19*0.866= 16.45 cm
Answer:
9 cm^2
Step-by-step explanation:
If the perimeter of the square is 12 cm, then the length of ONE side is (1/4) of that, or 3 cm.
The area of this square is A = s^2, where s is the length of one side.
Here we have A = (3 cm)^2 = 9 cm^2.
Answer:
use your compass to copy the length to a new line
Step-by-step explanation:
To make a line segment that has the same length as another, set your compass width to the length of the one you want to copy, and use that to mark the length on the line where you want your copy.
Use a straightedge to draw a line longer than JK.
- Label a point on that line A.
- Set your compass to the length JK.
- Mark that length from point A on the line you drew. Label the mark D.
AD is congruent to JK.
