Question

Tooloong Jaawaab Doong​

Answer 1

Jawaban:

A) Volume limas segiempat

= ⅓ × luas alas × tinggi

= ⅓ × ( 20 × 20 ) × 24

= ⅓ × 400 × 24

= 400 × 8

= 3200 cm³

B) Lp limas segiempat

= Luas alas + ( 4 × luas sisi tegak )

= ( 20 × 20 ) + ( 4 × ( ½ × 20 × 24 ))

= 400 + ( 4 × 240 )

= 400 + 960

= 1360 cm²

Answer 2

Jawaban:

a. 3.200 cm³

b. 1.440 cm²

Penjelasan dengan langkah-langkah:

sisi alas ➡ 20 cm

tinggi limas ➡ 24 cm

tinggi segitiga⤵

s² = 10² + 24²

s² = 100 + 576

s² = 676

s = √676

s = 26 cm

a. Volume?

V = 1/3 × L alas × tinggi

= 1/3 × (20 × 20) × 24

= 1/3 × 400 × 24

= 1/3 ×9.600

= 3.200 cm³

b. Luas permukaannya!

Lp = L alas + (4× L sisi tegak)

= 20 × 20 + (4 × (1/2 × 20 × 26)

= 400 + (4 × 260)

= 400 + 1.040

= 1.440 cm²