First find the area of the triangle shape:
Area of a triangle = 1/2 x base x height:
Area = 1/2 x 4 x 3 = 6 square cm.
For the volume multiply the area by the depth:
6 x 2 = 12 cubic cm
Answer:
S.A. = 15.7
Step-by-step explanation:
S. A. = 
1 x 1 x 3.14 = 3.14
3.14 x 1 x 4 = 12.56
12.56 + 3.14 = 15.7
Answer:
∠ ACB = 128° and ∠ABC = 32°
Step-by-step explanation:
∠ ADC = ∠ CAD (base angles theorem)
∠ ACD = 82° (angles in a triangle add to 180°)
∠ ACB = 128° (angles around a point add to 360°)
∠ ABC = 32° (angles in a triangle add to 180°)
Answer:
<h2>x = 52.5 cm</h2><h2 />
Step-by-step explanation:
this is called a ratio and proportion or similar triangles
<u> 21 </u> = <u> 35 </u>
31.5 x
do cross multiply:
21 x = 31.5 (35)
x = 1102.5 / 21
x = 52.5 cm
Answer:
Step-by-step explanation:
