Step-by-step explanation:
270°/360° ×π×13²
Area of sector=398.20
Answer:
True
Step-by-step explanation:
If two lines are perpendicular, they form four right angles. When two lines are perpendicular, there are four angles formed at the point of intersection. If two lines intersect to form a linear pair of congruent angles, then the lines are perpendicular.
The formula is theta=s/r
r=radius which in this case is 24/2=12cm
s=the arc length
theta is the angle formed by the arc which is 180-45=135
Express 135 degrees in radians and you get 0.75pi
<span>
s=r times theta or 12 (0.75pi)=9pi </span>
Here is the answer in exact form or decimal form.
Check the picture below.
the triangle has that base and that height, recall that A = 1/2 bh.
now as for the perimeter, you can pretty much count the units off the grid for the segment CB, so let's just find the lengths of AC and AB,


so, add AC + AB + CB, and that's the perimeter of the triangle.