HOC24
Lớp học
Môn học
Chủ đề / Chương
Bài học
vua hùng nha bạn
1: one2: two3: three4: four5: five6: six7: seven8: eight9: nine10: ten11: eleven12: twelve13: thirteen14: fourteen15: fifteen16: sixteen17: seventeen18: eighteen19: nineteen20: twenty21: twenty-one22: twenty-two23: twenty-three24: twenty-four25: twenty-five26: twenty-six27: twenty-seven28: twenty-eight29: twenty-nine30: thirty31: thirty-one32: thirty-two33: thirty-three34: thirty-four35: thirty-five36: thirty-six37: thirty-seven38: thirty-eight39: thirty-nine40: forty41: forty-one42: forty-two43: forty-three44: forty-four45: forty-five46: forty-six47: forty-seven48: forty-eight49: forty-nine50: fifty51: fifty-one52: fifty-two53: fifty-three54: fifty-four55: fifty-five56: fifty-six57: fifty-seven58: fifty-eight59: fifty-nine60: sixty61: sixty-one62: sixty-two63: sixty-three64: sixty-four65: sixty-five66: sixty-six67: sixty-seven68: sixty-eight69: sixty-nine70: seventy71: seventy-one72: seventy-two73: seventy-three74: seventy-four75: seventy-five76: seventy-six77: seventy-seven78: seventy-eight79: eventy-nine80: eighty81: eighty-one82: eighty-two83: eighty-three84: eighty-four85: eighty-five86: eighty-six87: eighty-seven88: eighty-eight89: eighty-nine90: ninety91: ninety-one92: ninety-two93: ninety-three94: ninety-four95: ninety-five96: ninety-six97: ninety-seven98: ninety-eight99: ninety-nine100: one hundred
đây bạn nha
Bài giải:a. Đường cao thửa ruộng hbh là:38: 2 = 19 (m)
Diện tích thửa ruộng là:19 × 38 = 722 (m2)
b. Chu vi thửa ruộng:
(38 + 26) × 2 = 128 (m)
Đúng
Sai
nha bạn