Number 10 and 11 please I really need it

Below.

Step-by-step explanation:

10.

a) RT is a half of RG so RG = 18 x 2 = 36 (if you’re asking why, search up the properties of a rectangle.)

b) HI = RG (if you’re asking why, search up the properties of a rectangle.)

—> 4x + 12 = 10x - 15

—> 27 = 6x —> x = 27/6 = 4.5

11. Since this is a parallelogram —> angle PSR = angle PQR (if you’re asking why, search up the properties of a parallelogram.)

We also have PS = QR and PQ = RS (if you’re asking why, search up the properties of a parallelogram.)

In triangles PQR and RSP:

QR = SP (from above)

PQ = SR (from above)

<PSR = <PQR (from above)

—> Triangle PQR and triangle RSP are congruent (side angle side)

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step-by-step explanation:

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answer: 12

step-by-step explanation:

because yes