Answer: an "addition equation" .
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Answer:
The first one
Step-by-step explanation:
<h3>
Answer: 1.79 square meters</h3>
Work Shown:
A = area of the triangular front face
A = base*height/2
A = 0.8*0.1/2
A = 0.04
L = lateral surface area
L = combined area of all the rectangular faces
L = (perimeter of the triangular face)*(depth of the prism)
L = (0.1+0.8+0.81)*(1)
L = 1.71
SA = total surface area of the triangular prism
SA = 2*A+L
SA = 2*0.04+1.71
SA = 1.79 square meters
Answer: 80 cm as a fraction of 4 m is 1/5
Step-by-step explanation:
Answer:
30 cm.
Step-by-step explanation:
Draw a line from R perpendicular to PQ to meet PQ at T.
RQT forms a right-angled triangle with RT = SP = 15.
So tan 36.87 = RT / TQ
tan 36.87 = 15 / TQ
TQ = 15 / tan 36.87
= 20 cm.
Now PT = SR = 10, so
PQ = 10 + 20
= 30 cm.
