Begin by using the cosine rule to find the unknown side.
Where a- unknown side, b is 12, c is 16 and angle in between is 108°
The cosine rule...
a² = b² + c² - 2bc cosA
= 12² + 16² - (2×12×16 cos108°)
= 518.655076
Taking the positive
square root...
a = 22.774
a = 22.8 cm nearest tenth
Answer:
X=7 ST=11 RT=17
Step-by-step explanation:
RT=RS+ST. RS= 2(7)-8. ST=11
X+10=2x-8+11. =14-8=6. RT= x+10
X+10=2x+3. RS=6. 7+10=17
10=x+3. RT=17
X=7
Area of the bottom triangle = 1/2 x 10 x 8.7 = 43.5 cm²
Area of the 3 rectangles = 3(10 x 6) = 180 cm²
Area of the top triangle = 3 (1/2 x10 x 4) = 60 cm²
Total surface are = 43.5 + 180 + 60 = 283.5 cm²
Answer: 283.5 cm²
9514 1404 393
Answer:
1.49283
Step-by-step explanation:
8.1% as a decimal is 0.081
The product of that and 18.43 is ...
0.081 × 18.43 = 1.49283
__
If this is a monetary value, it would round to 1.49.
<h2>90 sq in</h2>
Step-by-step explanation:
The total area in the figure can be divided into two areas.
The 
is the area of the 
rectangle.
The 
is the area of the adjacent triangle to the rectangle.
Total area=
90
