exam Maths Puzzle Numerical Ability

Geometry. Find the perimeter of the triangle shown in the figure.

Side: 4 Side: {{{sqrt(5)+sqrt(3)}}} bottom: {{{sqrt(5)-sqrt(3)}}}

I need some help with this problem. Thank

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exam Other Question

square root of T+3 minus the square root of T-2 equals the square root of 7-T If 20 percent of x equals 80 percent of y, which of the following expresses y in terms of x?

(A) y=16% of x
(B) y=25% of x
(C) y=60% of x
(D) y=100% of x
(E) y=400% of x