
I hope this this is what you need ..
Answer:
there's a blue crown that shows up when either 2 people already answered or if it's been a few days since only 1 person answered, just click that
Step-by-step explanation:
idk if u know this but apparently u gain points for marking someone brainliest, i read that somewhere but i could be wrong
First: 7cm, 7cm, 11cm
second: 19cm, 3cm, 3cm
Idiophone means an instrument that will produce a sound when being struck.
so the answer is B.