#nofilterneeded: Shortcuts to Becoming an Influencer

#nofilterneeded: Shortcuts to Becoming an Influencer

Matematika a. Luas dan keliling
b. besar sudut Q​

a. Luas dan keliling
b. besar sudut Q​

Jawaban:

Luas = 660 cm²

Keliling = 104 cm

Besar sudut Q = 153°

Penjelasan dengan langkah-langkah:

a) L. trapesium = (a + b) × t × 1/2

L = (24 + (24 + 7)) × 24 × 1/2

L = 55 × 24 × 1/2

L = 55 × 12

L = 660 cm²

QR² = 7² + 24²

QR² = 49 + 576

QR = √625

QR = 25 cm

Keliling = 24 + 24 + 7 + 25 + 24

Keliling = 104 cm

b) < PQT = 90°

< RQT = 180 - (90 + 27)

< RQT = 180 - 117

< RQT = 63°

Besar sudut Q = < PQT + < RQT

Besar sudut Q = 90 + 63

Besar sudut Q = 153°

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