A trapezoidal mural with bases 11m and 9m and height 6m needs to be painted. What is the cost of painting it if a box of paint i
2 answers:
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Answer:
w = -20
Step-by-step explanation:
- + 9 = 13
Shift the (+9) to the other side of the equation. (+9) will turn into (-9).
- = 13 - 9
= 4
Shift the (÷5) to the other side of the equation. (÷5) will turn into (×5).
-w = 4 × 5
= 20
Multiply both sides of the equation by (-1) so that -w will turn into w.
w = (-1) × 20
w = -20
Answer:
Perimeter = 78.7 inches
Step-by-step explanation:
From the given question, applying the Pythagoras theorem to one of the congruent triangles formed, we have;
=
+
= +
=841 + 81
= 922
hyp =
= 30.3645
The perimeter of the triangle can be determined as;
perimeter = +
+
= 30.3645 + 18 + 30.3645
= 78.729
The perimeter of the triangle = 78.7 inches