flyingcerberus1408
27.02.2021 •
Mathematics
- 2
Miss Johnson cuts out a triangular shape from her circular floor carpet as illustrated
on the diagram. The dimensions are as follows: PQ is the diameter of the carpet, R =
90°. Line RQ = 3 m, Line PR = 10m
R
Q
PL
Calculate:
(4
3.2.1
The length of the diameter.
HINT. You will need the Theorem of Pythagoras.
(2)
3.2.2
The area of the triangle.
(1)
3.2.3
The radius of the circle.
(1)
3.2.4
The perimeter of the triangle.
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Ответ:
B or 1.75a + 8b
Step-by-step explanation:
0.75a + 10b + a – 2b
Combine like terms:
(0.75a + a) + (10b - 2b)
Simplify:
1.75a + 8b