1. A Square shaped wooden plate has a diagonal length of 30cm. Can you find the Perimeter of plate ?
1 answer:
Answer:
84.85cm
Step-by-step explanation:
Let the sides of the square be x
The perimeter of the square = 4x
Get x using the pythagoras theorem
x^2 + x^2 = 30^2
2x^2 = 900
x^2 = 450
x = 21.21cm
Perimeter of the plate = 4(21.21)
Perimeter of the plate = 84.85cm
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1/3 (3x+12)
1/3×3x+1/3×12
x+4
255 l ------ 340km
x l -------- 100km
100*255=340x
25500=340x
x=75 litres
Answer:

Step-by-step explanation:
STEP 1: Subtract 11x from 7x.
STEP 2: Subtract 10 from 12.
It’s c I just took the test and got a hundred