Question

(b) Calculate angle O4C
4. Marks:
3+3+2+2 =10
In this question, all measurements are in metres.
NOT TO
SCALE
2r-3
The diagram shows a right-angled triangle.
(a) Show that 5r2 - 12x - 27 = 0.
(b) Solve 5x2 - 12x - 27 = 0.
Show all your working and give your answers correct to 2 decimal places.
(c) Calculate the perimeter of the triangle.
(d) Calculate the smallest angle of the triangle.​

Answer 1

Step-by-step explanation:

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sorry don't know the answer